#!/usr/bin/env node

const Koa=require('koa'),
      log=console.log;

const app=new Koa();

app.use((ctx,next)=>{ //M-logger
  log(`${ctx.method} ${ctx.path}`);
  next();
  log(`cost:${ctx.cost}ms`);
});

app.use((ctx,next)=>{ //M-ms
  const start=Date.now();
  next();
  const end=Date.now();
  ctx.cost=end-start;
});

app.use((ctx,next)=>{ //M-hello
  ctx.body='hello koa';
});
app.listen(8080);


